Records of the US House of Representatives, Record Group 233: Records of the House Un-American Activities Committee, 1945-1969 (Renamed the) House Internal Security Committee, 1969-1976. Washington, DC: Center for Legislative Archives, National Archives and Records, July 1995.
PDF of the finding aid for the papers of the House Un-American Activities Committee (1945 to 1969) and its successor after renaming, the House Internal Security Committee (1969-1975). Papers are housed at the National Archives and Records Administration in Washington, DC.
This guide an official publication of the United States Government and is thus copyright clear, public domain.